4 KudoZ points awarded for this answer. Comment: "Final Rendering: Mr. Ko is the station sergeant here -- not just any police officer. Acknowledgment: After reading carefully through everyone's response I was still dissatisfied and did some additional research on my own. The results can be found on the Tsong Kit website. Truly, I did not believe that this would be a difficult question and only awarded it PRO status, because it was subject specific. Passing in review it appears that Shang and Chen Star either did not understand the question or were simply responding to the glossary entry. Ray Luo appeared to understand well the problem, but his response appears to be targeted towards a Mainland/UK audience, rather than an HK/UK or HK/US audience. Though wherestip and Chinesetrans appear to be on the same frequency length as I, neither provided the kind of precision that I was hoping for, and both offered translations similar to my own. Certainly, I appreciate the praise, the confirmation, the discussion, as well as the additional renderings of my own basic thought, but I was truly looking for something more precise, if possible. Finally, although Bill Lao nearly produced the kind of precision that I was looking for, he provided no reference, and in Hong Kong a station sergeant and a sergeant are clearly different people. I do think he understood the question, even though he may not be as familiar with US terminology as are wherestip and Chinesetrans. So, whom do I award? I have decided on Bill Lao, because in the end his entry was only one rank away from what appears to be the difference between a 官 and a non-官 in this particular context. Surely, the author had a fairly clear idea about the difference -- simply, he was using common, rather than official vernacular. My additional thanks to Denyce Seow, Chinoise, and Gio for their confirmatory support. Discussion: Please see http://homepage.mac.com/moogoonghwa/tsongkit/part3/III-2b-g.html#s19 for further discussion regarding the context of this question. My very best from the land of no mountains surrounded by sea on many sides. "